You can find the answer by plugging in any of the multiple choice options into a,
when you square a number (^2), the result is always positive even if the number starts off negative,
-25 or 125 wouldn't work for this equation because the answer is too big
but when you plug -5 or 5 in you get the right answer, so the answer is c
X=7%
y=12%
x+y=20000
0.07x+0.12y=20000*0.19=3800
Well, the first one is 2/40=1/20. The 2nd one is 1/39. You multiply these to get 1/780.
The answer is 16000000000.
Because you take the decimal and move it 10 times to the right.
<span>24 mph
</span>P.S. please vote this as the brainliest answer :)
